When the leftist influence government began employing suborned scientists to FIND that Climate Change was a reality when the 'science' was still in its infancy then intelligent people who were themselves trained in various sciences . . . got suspicious; and rightly so as it has turned out.
First it was global cooling and then global warming and then cooling and then warming and then finally those government funded scientists hired to get specific results threw up their hands and called it Climate Change, which is a catch-all term that can never be wrong since climate is always changing; always has done so and always will. Psssst . . . leftists thought that nobody would notice that slight of hand game play?